{"id":"tch-sub-plan-short-period","audience":"teachers","category":"planning","technique":"constraints","title":"Plan a substitute lesson that fits a shortened period","free":false,"task":"You'll be out Thursday, and a substitute will teach your 6th grade density lab from a printed plan. Thursday is an assembly schedule, so write the plan as exactly 5 numbered steps whose minutes add up to the shortened period, under 90 words, in plain text. It must include the goggle check before any hands-on work and use only supplies that are actually available. Write a prompt that gets you exactly that.","materialLabel":"Your lesson notes (attached to your prompt automatically)","material":"Lesson notes - Mr. Abara, 6th grade science, Room 214\nThursday: Density lab, periods 2 and 4\nGoal: students find the density of 3 mystery cubes (mass / volume) and predict which ones float.\n\nNormal period = 50 min.\n\nSupplies:\n- digital balances (6, on the back counter)\n- graduated cylinders + water\n- mystery cube kits (wood, plastic, aluminum) in the blue bin\n- \"Density Detectives\" worksheet, copies in the blue bin\n- paper towels\n- spring scales - ON LOAN to Mr. Ortiz this week, don't use\nProjector bulb burned out, use the whiteboard.\n\nSafety: goggles ON before anyone touches water or cubes. Sub must do the goggle check every period.\n\nIdeas: quick warm-up question on the board (\"Why does a huge ship float?\"), demo how to read the cylinder at eye level, groups of 4, exit ticket = 1 question on the back of the worksheet.\n\n---\nOffice email, Wed 4:12 pm: REMINDER - Thursday is an ASSEMBLY SCHEDULE. All periods shortened to 38 minutes.\n\nAlso: staff photo retakes Friday. Coffee machine in the lounge is fixed!","rules":[{"type":"numberedItems","count":5},{"type":"maxWords","max":90},{"type":"plainText"}],"mistakes":[{"title":"Just saying \"make a lesson plan\"","why":"The AI writes a full page with objectives, standards and bold headings, too much for a sub to follow.","fix":"Be exact: \"Exactly 5 numbered steps, each starting with its minutes. Plain text.\"","checks":["numberedItems","plainText"]},{"title":"Trusting the AI to count words","why":"AI is bad at counting. Ask for \"under 90 words\" and it often lands well over.","fix":"Cap each part instead: \"each step one sentence under 14 words.\"","checks":["maxWords"]},{"title":"Missing the schedule change","why":"The notes say a period is 50 minutes, and the AI uses that unless you point to the office email.","fix":"Add: \"Thursday periods are 38 minutes. The minutes must add up to exactly 38.\"","checks":["r0"]},{"title":"Burying the safety step","why":"The AI often lists goggles as a side note at the end instead of a step before the lab starts.","fix":"Add: \"Step 2 is the goggle check, before anyone touches water or cubes.\"","checks":["r1"]},{"title":"Letting the AI assume supplies","why":"The AI fills a plan with slides, a video or the spring scales because they are normal for this lab.","fix":"Add: \"Use only supplies the notes list as available.\"","checks":["r2"]}],"promptHints":[{"label":"Sets the number of steps","patterns":["\\b(5|five)\\b.{0,20}(steps?|numbered|parts?)"]},{"label":"Gives the real period length","patterns":["38","assembly","shortened"]},{"label":"Puts the goggle check in","patterns":["goggle","safety"]},{"label":"Limits the supplies","patterns":["projector","spring scale","only.{0,25}(supplies|available|materials)"]},{"label":"Sets a word limit","patterns":["\\d+\\s*words","word (limit|count)"]}],"hint":"The AI plans for a normal day with normal supplies. Tell it the real period length, the number of steps, where the safety check goes, and what it can't use.","rubricLabels":["The minutes of the 5 steps add up to exactly 38 (the shortened assembly-day period), not 50","Includes the goggle check before any step where students touch water or cubes","Uses only available supplies: no projector, slides or video, no spring scales, and no materials that aren't in the notes"]}